Home / 18,245.25-25,178.45-9,861.75

Finding the Fourth Proportional to 18,245.25, 25,178.45 and 9,861.75

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Solution

The fourth proportional to 18,245.25, 25,178.45 and 9,861.75 is: 13,609.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.25 : 25,178.45 = 9,861.75 : x
  2. Step 2: Convert to fraction form
    18,245.25/25,178.45 = 9,861.75/x
  3. Step 3: Cross multiply
    18,245.25x = 25,178.45 × 9,861.75
  4. Step 4: Simplify right side
    18,245.25x = 248,303,579.29
  5. Step 5: Solve for x
    x = 248,303,579.29/18,245.25
  6. Step 6: Final answer
    x = 13,609.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.